I will check tomorrow. I dont recall seeing anything that looks like thatAccording to Rockauto the wiper motor changeover was 84' , so 83' would be the old style so you should have the same style as my 86' Regal
I will take a pic of mine tomorrow. Would be even funnier if i had the 83 wiper motor I might as well throw some 81 and 82 parts at it while im at it